We use the Trading API via the C# SDK.
We are trying to import the Seller data so we can manage their inventory, and we do Books. We need the ISBN and EAN from Product Listing Details, yet we do not get any data back from the GetItem calls.
have tried setting the DetailLevelList and other such attributes to no avail.
How do I get the ISBN back for the listings I get via Trading API GetItem calls?
